Background
s: Electrodiagnostic tests have been developed to estimate the degree of facial nerve injury during theacute phase. Side-to-side amplitude comparison with the affected side expressed as a percentage of the nonaffected sidehas been one of the most valuable electrophysiologic methods of assessing facial nerve functioning. This study wasdesigned to know whether there is any difference in the side-to-side comparison of amplitudes and terminal latencies ofthe compound muscle action potentials (CMAP) of the facial muscles in the patients with Bell
